Are coding boot camps legit?

I plan to take some coding bootcamps once I graduate from college, I dont really have the money to commit to another four years of my life to get a computer science degree but I do enjoy coding and I know that it pays well.

I plan on learning some coding on my own using Harvards cs50 website and eventually taking a bootcamp at UTA in the next year or so.

There are many success stories that say "I went to this bootcamp and I became the head of microsoft in 3 weeks!" and that just sounds a little far fetched to me so I want to get some opinions from people actually in the field.

any coding bootcamp suggestions you guys have are welcome too!